#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<assert.h>
unsigned int my_strlen(const char* len)
{
	assert(len);
	int count = 0;
	while (*len != '\0')
	{
		count++;
		len++;
	}
	return count;
}
int main()
{
	char arr[] = "abcdef";
	printf("%u",my_strlen(arr));
	return 0;
}